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“We hear only the questions to which we are capable of finding an answer.”
The aphorism suggests that inquiry is limited by the conceptual capacities of the person asking, making intellectual growth partly a matter of becoming able to formulate and recognize better questions.
Source note: The Joyful Wisdom, aphorism 196; Thomas Common translation.
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“Our business here is not to know all things, but those which concern our conduct.”
Locke places useful limits around intellectual ambition: human inquiry need not comprehend everything in order to guide life well, and knowing where understanding stops is part of using it responsibly.
Source note: An Essay Concerning Humane Understanding, Book I, Chapter I, section 6, Project Gutenberg #10615.
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“Partial knowledge is more triumphant than complete knowledge; it takes things to be simpler than they are.”
The warning is that simplified partial explanations can spread more easily precisely because they remove the complications that fuller understanding would have to preserve.
Source note: Human, All-Too-Human, Part I, aphorism 578, “Partial Knowledge”; Helen Zimmern translation; sentence shortened before the final clause about popularity and persuasion.
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“The fool who knows his foolishness, is wise at least so far. But a fool who thinks himself wise, he is called a fool indeed.”
The verse treats recognition of one’s own foolishness as the beginning of wisdom, while self-certainty without understanding becomes a deeper form of ignorance.
Source note: Dhammapada 63, Chapter V, “The Fool,” F. Max Müller translation, Project Gutenberg #2017. The verse belongs to a Buddhist canonical collection and remains a textual source voice rather than a modern individual-author quotation.
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“He who knows only his own side of the case, knows little of that.”
Understanding a position requires serious contact with competing arguments; familiarity with only one side can produce confidence without real comprehension.
Source note: On Liberty, Chapter 2; Mill argues for open discussion because opposing views expose weaknesses and sharpen understanding.
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“To define is to limit.”
Voice: Fictional character · Lord Henry Wotton
Definitions clarify ideas but can also narrow them, especially when a label is treated as the complete reality of a person or experience.
Source note: The Picture of Dorian Gray, 1891 edition, Chapter 17; Lord Henry answers the Duchess of Monmouth’s question “What are you?” with “To define is to limit.”